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Abstract

Staphylococcus aureus is a major pathogen causing intramammary infections (IMI) in dairy cattle herds worldwide. Simulation models can be used to investigate the epidemiologic and economic outcomes of different control strategies against IMI. The transmission rate parameter is one of the most...

Author(s)
Kirkeby, C.; Zervens, L.; Toft, N.; Schwarz, D.; Farre, M.; Hechinger, S.; Halasa, T.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2019, 102, 2, pp 1428-1442
Abstract

A longitudinal study was conducted to assess to what extent intramammary infection (IMI) with non-aureus staphylococci (NAS) within the first 4 d after calving in dairy heifers affects quarter milk yield (qMY) and quarter milk somatic cell count (qSCC) during the first 4 mo of lactation. In total,...

Author(s)
Valckenier, D.; Piepers, S.; Visscher, A. de; Bruckmaier, R. M.; Vliegher, S. de
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2019, 102, 7, pp 6442-6453
Abstract

Nowadays, mastitis is one of the biggest problems in breeding dairy cattle. Treatment of this disease with conventional antibiotics is ineffective because many pathogens are resistant. Researchers have therefore been forced to look for new solutions, and metal nanoparticles (NPs) have been found to ...

Author(s)
Kalińska, A.; Jaworski, S.; Wierzbicki, M.; Gołębiewski, M.
Publisher
MDPI AG, Basel, Switzerland
Citation
International Journal of Molecular Sciences, 2019, 20, 7, pp 1672
Abstract

The objective of this study was to evaluate and compare different combinations of intervention strategies for contagious or opportunistic subclinical and clinical intramammary infections (IMI). We simulated two different Danish dairy cattle herds with ten different intervention strategies focusing...

Author(s)
Gussmann, M.; Steeneveld, W.; Kirkeby, C.; Hogeveen, H.; Farre, M.; Halasa, T.
Publisher
Elsevier B.V., Amsterdam, Netherlands
Citation
Preventive Veterinary Medicine, 2019, 166, pp 78-85
Abstract

The overall aim of this study was to compare different intervention strategies for clinical intramammary infections (IMI). We conducted a simulation study to represent a Danish dairy cattle herd with IMI caused mostly by Staphylococcus aureus and 9 different intervention strategies for clinical...

Author(s)
Gussmann, M.; Steeneveld, W.; Kirkeby, C.; Hogeveen, H.; Nielen, M.; Farre, M.; Halasa, T.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2019, 102, 2, pp 1483-1493
Abstract

Intramammary infections (IMI) are prevalent in nonlactating dairy cattle and are known to alter mammary structure and negatively affect the amount of mammary epithelium in the gland. Mechanisms responsible for the observed changes in mammary growth during an IMI are poorly understood, yet the...

Author(s)
Enger, B. D.; Tucker, H. L. M.; Nickerson, S. C.; Parsons, C. L. M.; Akers, R. M.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2019, 102, 3, pp 2607-2617
Abstract

The aim of this paper is to describe a novel subpopulation of Staphylococcus haemolyticus isolated from intramammary gland infections (IMI) in cattle. In total, eight isolates originating from milk samples from two unrelated dairy farms were examined phenotypically (using the ID 32 STAPH system)...

Author(s)
Wanecka, A.; Król, J.; Twardoń, J.; Mrowiec, J.; Bania, J.; Korzeniowska-Kowal, A.; Tobiasz, A.
Publisher
Elsevier B.V., Amsterdam, Netherlands
Citation
Veterinary Microbiology, 2018, 214, pp 28-35
Abstract

This study investigated the antimicrobial susceptibility of methicillin-resistant Staphylococcus aureus (MRSA) isolated from cases of subclinical bovine mastitis in China, as well as resistance mechanisms and virulence genes encoding adhesins and toxins. We determined antimicrobial susceptibility...

Author(s)
Yang Feng; Zhang ShiDong; Shang XiaoFei; Li HongSheng; Zhang Hang; Cui DonGan; Wang XuRong; Wang Ling; Yan ZuoTing; Sun Yan
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2020, 103, 1, pp 840-845
Abstract

Intramammary infections (IMI) are prevalent in non-lactating dairy cattle and their occurrence during periods of significant mammary growth and development (i.e. pregnant heifers and dry cows) is believed to interfere with growth, development, and subsequent milk production. However, direct study...

Author(s)
Enger, B. D.; Crutchfield, C. E.; Yohe, T. T.; Enger, K. M.; Nickerson, S. C.; Parsons, C. L. M.; Akers, R. M.
Publisher
BioMed Central Ltd, London, UK
Citation
Veterinary Research, 2018, 49, 47, pp (5 June 2018)
Abstract

Staphylococcus aureus is a highly contagious mastitis-causing pathogen infecting dairy cattle worldwide. Previous studies have shown the presence of different genotypes (GT) on farms. In Switzerland, Staph. aureus genotype B (GTB) is contagious, whereas GTC and other genotypes cause sporadic,...

Author(s)
Leuenberger, A.; Sartori, C.; Boss, R.; Resch, G.; Oechslin, F.; Steiner, A.; Moreillon, P.; Graber, H. U.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2019, 102, 4, pp 3295-3309

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